Find pixel intensity with coordinates?
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valerio auricchio
on 5 Nov 2020
Commented: valerio auricchio
on 6 Nov 2020
I have two vector:
X[12 34 12 22]
Y[2 3 44 5]
They rappresent the coordinates (x,y) of a pixel. I want to know the intensity of each pixel and eliminate the pixel that have intensity lower than a value.
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Accepted Answer
Matt J
on 5 Nov 2020
pixelValues=yourImage( sub2ind(size(yourImage),X,Y) );
keep=(pixelValues>=threshold);
X=X(keep);
Y=Y(keep);
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